This 1980 Mexico Un Peso coin features an open 8 defect error that makes it a unique addition to any coin collection. The coin is composed of copper-nickel and was minted in Mexico, making it a piece of Mexican history. The denomination of the coin is 1 peso, and it is uncertified. This coin is perfect for collectors who appreciate the historical significance of Mexican currency and are looking for a rare find. MINTAGE... 23.8 million made with defect.